Phosphoric acid catalyst and its use

US5824825A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Hermanus Gerhardus Lansink-Rotgerink · Goldbach, DE
• Harald Hoecker · Pocking, DE
• Stefan Wieland · Offenbach, DE
• Steffen Seebald · Großkrotzenburg, DE
• Heike Riedemann · Mömbris, DE

Key dates

• Filing date: Mar 27, 1997
• Grant date: Oct 20, 1998
• Expiry date: Mar 27, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C29/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A phosphoric acid catalyst on a shaped, inorganic support and its use for the hydration of olefins. At least 90 wt. % of the catalyst support consists of titanium dioxide and/or zirconium dioxide and has outstanding ageing stability under the hydrothermal conditions existing during hydration processes.